Re: [PATCH v4 1/6] KVM: MMU: introduce gfn_to_pfn_atomic() function

Marcelo Tosatti
2010-07-02T17:22:53Z

On Thu, Jul 01, 2010 at 09:53:04PM +0800, Xiao Guangrong wrote:
> Introduce gfn_to_pfn_atomic(), it's the fast path and can used in atomic
> context, the later patch will use it
>
> Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
> ---
> arch/x86/mm/gup.c | 2 ++
> include/linux/kvm_host.h | 1 +
> virt/kvm/kvm_main.c | 32 +++++++++++++++++++++++++-------
> 3 files changed, 28 insertions(+), 7 deletions(-)
>
> diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c
> index 738e659..0c9034b 100644
> --- a/arch/x86/mm/gup.c
> +++ b/arch/x86/mm/gup.c
> @@ -6,6 +6,7 @@
> */
> #include <linux/sched.h>
> #include <linux/mm.h>
> +#include <linux/module.h>
> #include <linux/vmstat.h>
> #include <linux/highmem.h>
>
> @@ -274,6 +275,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
>
> return nr;
> }
> +EXPORT_SYMBOL_GPL(__get_user_pages_fast);
>
> /**
> * get_user_pages_fast() - pin user pages in memory

This should be a separate patch (overlooked that before). Ingo, Nick,
can this go in through the kvm tree?